<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        h1 {
            /*color: #ff0000;*/
            /*color: #00f;*/
            /*color: rgb(255,0,0);*/
            color: rgba(0,0,255,0.3);
        }
        #d2 {
            width: 200px;
            height: 200px;
            background-color: pink;
            /*设置背景图片*/
            background-image: url("../c.jpg");
            /*设置背景图片大小*/
            background-size: 100px 100px;
            /*禁止重复*/
            background-repeat: no-repeat;
            /*控制位置:横向 纵向*/
            /*background-position: 50px 100px;*/
            background-position: 50% 50%;
        }
        #d1 {
            width: 611px;
            height: 376px;
            background-color: #e8e8e8;
            background-image: url("http://doc.canglaoshi.org/tstore_v1/images/itemCat/study_computer_img1.png");
            background-repeat: no-repeat;
            background-size: 318px 319px;
            background-position: 90% 80%;
        }
    </style>
</head>
<body>
    <div id="d2"></div>
    <div id="d1"></div>
    <h1>颜色测试</h1>
</body>
</html>